Átlagos GPS koordináták településre: irányítószám 325-861: 36.131, 126.809

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Város lista:
>> Masan-myeon/마산면 325-861, Chungcheongnam-do/충남, Seocheon-gun/서천군, Andangri/가양리, GPS koordináták: 36.13101,126.80881
>> Masan-myeon/마산면 325-861, Chungcheongnam-do/충남, Seocheon-gun/서천군, Gayangri/마명리, GPS koordináták: 36.13106,126.80886
>> Masan-myeon/마산면 325-861, Chungcheongnam-do/충남, Seocheon-gun/서천군, Isari/삼월리, GPS koordináták: 36.13107,126.80887
>> Masan-myeon/마산면 325-861, Chungcheongnam-do/충남, Seocheon-gun/서천군, Mamyeongri/송림리, GPS koordináták: 36.13107,126.80887
>> Masan-myeon/마산면 325-861, Chungcheongnam-do/충남, Seocheon-gun/서천군, Samwolli/신장리, GPS koordináták: 36.13102,126.80882
>> Masan-myeon/마산면 325-861, Chungcheongnam-do/충남, Seocheon-gun/서천군, Sinjangri/안당리, GPS koordináták: 36.13114,126.80894
>> Masan-myeon/마산면 325-861, Chungcheongnam-do/충남, Seocheon-gun/서천군, Songrimri/요곡리, GPS koordináták: 36.13115,126.80895
>> Masan-myeon/마산면 325-861, Chungcheongnam-do/충남, Seocheon-gun/서천군, Yogokri/이사리, GPS koordináták: 36.13114,126.80894